Starting mechanism for explosive-engines.



H. MEREDITH-JONES.

STARTING MECHANISM FOR EXPLOSIVE ENGINES.

APPLIOATION FILED JUNE24,19124 1,071,775. Patented Sept. 2, 1913.

4 b I I I4 WWII/E8858.- 15

INVENTOR /t ezedzf; 2/0 4 A TTOR/VEY UNHED STATE$ PATENT OFFIQE.

HUIBEET MEREDITH-JONES, OF NEW YORK, N. Y., ASSIGNOR TO COLUMBIA NUT ANDBOLT COMPANY, INCORPORATED, OF BRIDGEPORT, CONNECTICUT, A CORPORATION OFNEW YORK.

Specification of Letters Patent.

Patented Sept. 2, 19113.

Application filed June 24, 1912. Serial No. 705,418.

To all whom it may concern Be it known that I, H'Unnn'r hlnnmiirrii-Jones, a subject of the King of England, residing at New York city,county of New York, State of New York, have invented an Improvement inStarting Mechanism for 1* xplosive-Engines, of which the following is aspecification.

This invention has for its object to provide a simple, inexpensive,effective and easily operated starting mechanism for explosive enginesthat will avoid the objections to the various mechanisms of thischaracter that have heretofore been pro duced.

With these and other objects in view the invention consists in the novelc iinstructions and combinations of the parts which I will now describereferring to the accompanying drawing forming a part of thisspecification and using reference characters to indicate the severalparts.

Figure 1 is an elevation of my novel starting mechanism as seen from theleft in Fig. 2, the end plate being removed; Fig. 2 a View as seen fromthe right in Fig. 1, the upper portion being in central verticalsection; Fig. 3 a section on the line 3% in Fig. 2 looking in thedirection of the arrows; Fig. f a section on the line 4-4: in Fig. 3looking in the direction of the arrows; and Fig. 5 is an elevationpartly in section of the driving member detached, its position beingsubstantially as seen from the left in Fig. 1.

1O denotes a shaft to which a driven mem ber 11 is rigidly secured inany suitable manner, as by a key 12 and 13 a driving member mounted onthe shaft contiguous to the driven member but free to rotateindependently thereof. The driving member receives motion from drivingrings 14 and lfnmounted to oscillate exteriorly thereof, and rollers 16lying intermediate the driving rings and the driving member. Drivingring 1-1 is nrovided with an arm 17 and driving ring is provided with anarm 18, both of which in use are moved in the same directionsimultaneously in any suitable manner, as by means of links and astarting lever (not shown). At the outer end of the shaft is a hub 19with which an end plate 20 has threaded engagement, said plate beingprovided with a ratchet 21 for engagement by a starting crank which mayhe slipped on over the hub should it be required to start the engine bycranking up. The driven member is provided in its inner face with arecess 22 which receives astrong U- shaped spring 23, the purpose ofwhich will presently be explained, and with inwardly extending lugs 24Lwhich extend through the driving member and lie between peripheralabutmcnts 25 on said member. Between the forward walls of abutments 25and the rear walls of lugs 24. are recesses 26 which receive the rollers16. The metal is removed at the bases of the forward walls of abutments25 making the recesses deepest at that end and providing inclines 28,all of which extend in the same direction from the deep portions of therecesses. The rollers lie between the inner walls of the driving ringsand the inclines and when arms 17 and 18 are oscillated the rollers arecaused through the frictional engagement of the inner walls of thedriving rings to travel up the inclines and wedge between the inclinesand the walls. It will be noted that the driving rings are whollyindependent of each other, one acting to carry the driving memberforward while the other is moving backward freely over it. In starting,motion is comnmnicatcd to the driven member by means of a driving lug 29which projects laterally from the driving member into recess 22 in thedriven member. The ends of spring 23 are outwardly turned. and lie in anenlargement of the recess which is provided with a shoulder 30 and anabutment 31, in which is an adjusting screw 32. Lug 29 (see Fig. 3) liesbetween shoulder 30 and one of the outwardly turned ends of the spring,the other end of the spring bearing against the adjusting screw by whichthe tension of the spring may be regulated.

l/Vhen oscillatory motion is communicated to the driving rings, one ofsaid rings will cause the rollers to travel up the inclines and wedgewhich will impart forward movement to the driving member, and, throughthe engagement of lug 29 with sprin 23 (see Fig. 3) and the engagementof the other end of the spring with the adjusting screw in the abutmenton the driven meniber, will communicate motion to the driven member andthrough said member to the shaft. The instant the power of an engine iscommunicated to the shaft its rotation will be faster than the rotationof the driving member. In other words, the shaft will run away from thedriving? member and. lugs 2:45 on the driven member will engageabutments 25 on the driving member which will be carried forward fasterthan the operative driving ring and disconnected therefrom asthe rollerswill necessarily drop back into the deep portion of the recesses,leaving the parts in the position shown in Fig. 1.

ed, a" spring intermediate the driving lugand the driven member andmeans for imparting rotary movement to the driving member.

2.. Starting mechanism comprising a d'riving member having a driving lug and peripheral recesses with inclines, driving rings outside thedriving member, rollers between the inclines and the driving rings, adriven member having lugs.- engaging the driving member and a springintermediate the d'riving lug and the driven member which receives theblow of a backfire.

3. Starting mechanism comprising a driving member having a driving lugand peripheral recesses with inclines, driving rings outside the drivingmember, rollers between,

the inclines and the driving rings, a driven member raving lugs engagingthe driving member and a recess having an abutment and a spring in saidrecess which bears, against the abutment and against which the: membermdriving lug bears.

4. Starting mechanism comprising a drivingmember having a driving lugand peripheral recesses with inclines, driving rings. outside. thedriving member, rollers between the inclines and the driving rings, a.driven driving member, and a spring i g the drlvmg lug-and the ClI'lVGIlmember,.sub,- stantially as described for the purpose specified.

member having lugs engaging the drivin member and a recess having ashoulder anc an abutment, and a sprin in the-recesshaving outwardlyturned encls, one of said ends engaging the abutment and the other being.in presence of two witnesses.

g ged by the driving Lug.

Startmg h nlsm comprisinga drivclines, driving rings,roll'ers.lntermediate the. I

ing' member having a driving lug and peengage the. abutments on the berand carry the latter forward leaving the inclines and the rings, adriven member havinglugs engaging the abutments and a springinternaedrate the driving lug and the drivenmember, oscillation of thedriving rings causing the rollers: to travel up the mchnes and rotatethe drlving member and the driving l-ug' communicating motion to thedriven member, increased motion of the driven member causing the 111 'sthereon to rlvlng memrollers in the deep portions of the recesses, and abackfire causing the spring to yield and the. lugs. on the driven memberto knock the rollers backward and disconnect the driving member from thedriving rings.

6. Starting mechanism comprising a driving member having a driving lngand pe ripheral recesses with abutments and in-.

clines, driving rings, rollers intermediate the inclines and the rings,a driven member having lugs engaging the abutments, and a spring, havingoutturned ends, one of said ends. engaging the driven member, the otherbeing engaged by the driving lug.

T; The combination with a shaft and a driven member secured thereto andprovided with lugs, of a driving member loose on the shaft and having adriving lug, abutments engaged by the. lugs on the driven member andperipheral recesses with inclines, driv- 111g rings, rollersintermediate the inclines and the rings and a spring intermediate thedriving lug and the driven member, whereby oscillation of the ringsimparts rotary motion.- to, the other parts and when the shaft Iturnsfaster than the driving member or turns backward, the driving member isdis connected from. the rings.

8.. The combination with a. shaft and a driven hub. secured thereto. andprovided with lugs, of a driving member loose on theshaft and having aments engaged by the lugs: on the. driven.

*iving lug, and abutmemher, a spring intermediate the driving lug andthe driven member, and means for nnpartmg rotary movement to the driving9.. The combination with a driving mem- V her having a driving lug andperipheral. re-

cesses. Withinclines, driving rings, and roll ers between the inclinesand the rings, of

a driven member having lugs engaging the In testimony whereof I afiix mysignature Copies of'thi's patent may be obtained for five cents, each,by; addressing-the "Gommi'ssi'oner of Patents;

Washington, D...G."

ntermediate

